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A FEM Analysis on the Influence of Manganese on Carbon and Chromium Macrosegregation in Large Size Steel Ingot

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Abstract:

In this study, 3D numerical simulations were performed to study the effect of Mn on the macrosegregation behaviors of carbon and chromium in a 40 MT steel ingot using Finite Element Modeling (FEM). Two Mn contents of 0 and 5 wt.% were investigated. Thermophysical properties such as specific heat, density and phase fractions were determined using thermodynamic software Thermo-Calc®. Simulation results indicated that higher Mn content increases the carbon macrosegregation while it tends to lower the one of chromium. Moreover, it changes the solute poor band into rich one in the case of chromium and no bands were obtained for carbon. These results are analyzed in terms of the changes of thermophysical properties, interactions between alloying elements and the change in the primary solidification mode from δ-ferrite to austenite resulting from the increase of Mn concentration.

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Periodical:

Materials Science Forum (Volume 1053)

Pages:

252-257

DOI:

https://doi.org/10.4028/p-ktk508

Citation:

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Online since:

February 2022

Authors:

Abdelhalim Loucif*, Chunping Zhang, Jean Benoit Morin, Mohammad Jahazi

Keywords:

Finite Element Modeling, Ingot, Macrosegregation, Manganese, Steel

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* - Corresponding Author

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